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1#ifndef _ASM_S390X_COMPAT_H
2#define _ASM_S390X_COMPAT_H
3/*
4 * Architecture specific compatibility types
5 */
6#include <linux/types.h>
7#include <linux/sched.h>
8#include <linux/thread_info.h>
9
10#define PSW32_MASK_PER 0x40000000UL
11#define PSW32_MASK_DAT 0x04000000UL
12#define PSW32_MASK_IO 0x02000000UL
13#define PSW32_MASK_EXT 0x01000000UL
14#define PSW32_MASK_KEY 0x00F00000UL
15#define PSW32_MASK_BASE 0x00080000UL /* Always one */
16#define PSW32_MASK_MCHECK 0x00040000UL
17#define PSW32_MASK_WAIT 0x00020000UL
18#define PSW32_MASK_PSTATE 0x00010000UL
19#define PSW32_MASK_ASC 0x0000C000UL
20#define PSW32_MASK_CC 0x00003000UL
21#define PSW32_MASK_PM 0x00000f00UL
22
23#define PSW32_MASK_USER 0x00003F00UL
24
25#define PSW32_ADDR_AMODE 0x80000000UL
26#define PSW32_ADDR_INSN 0x7FFFFFFFUL
27
28#define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20)
29
30#define PSW32_ASC_PRIMARY 0x00000000UL
31#define PSW32_ASC_ACCREG 0x00004000UL
32#define PSW32_ASC_SECONDARY 0x00008000UL
33#define PSW32_ASC_HOME 0x0000C000UL
34
35extern u32 psw32_user_bits;
36
37#define COMPAT_USER_HZ 100
38#define COMPAT_UTS_MACHINE "s390\0\0\0\0"
39
40typedef u32 compat_size_t;
41typedef s32 compat_ssize_t;
42typedef s32 compat_time_t;
43typedef s32 compat_clock_t;
44typedef s32 compat_pid_t;
45typedef u16 __compat_uid_t;
46typedef u16 __compat_gid_t;
47typedef u32 __compat_uid32_t;
48typedef u32 __compat_gid32_t;
49typedef u16 compat_mode_t;
50typedef u32 compat_ino_t;
51typedef u16 compat_dev_t;
52typedef s32 compat_off_t;
53typedef s64 compat_loff_t;
54typedef u16 compat_nlink_t;
55typedef u16 compat_ipc_pid_t;
56typedef s32 compat_daddr_t;
57typedef u32 compat_caddr_t;
58typedef __kernel_fsid_t compat_fsid_t;
59typedef s32 compat_key_t;
60typedef s32 compat_timer_t;
61
62typedef s32 compat_int_t;
63typedef s32 compat_long_t;
64typedef s64 compat_s64;
65typedef u32 compat_uint_t;
66typedef u32 compat_ulong_t;
67typedef u64 compat_u64;
68
69struct compat_timespec {
70 compat_time_t tv_sec;
71 s32 tv_nsec;
72};
73
74struct compat_timeval {
75 compat_time_t tv_sec;
76 s32 tv_usec;
77};
78
79struct compat_stat {
80 compat_dev_t st_dev;
81 u16 __pad1;
82 compat_ino_t st_ino;
83 compat_mode_t st_mode;
84 compat_nlink_t st_nlink;
85 __compat_uid_t st_uid;
86 __compat_gid_t st_gid;
87 compat_dev_t st_rdev;
88 u16 __pad2;
89 u32 st_size;
90 u32 st_blksize;
91 u32 st_blocks;
92 u32 st_atime;
93 u32 st_atime_nsec;
94 u32 st_mtime;
95 u32 st_mtime_nsec;
96 u32 st_ctime;
97 u32 st_ctime_nsec;
98 u32 __unused4;
99 u32 __unused5;
100};
101
102struct compat_flock {
103 short l_type;
104 short l_whence;
105 compat_off_t l_start;
106 compat_off_t l_len;
107 compat_pid_t l_pid;
108};
109
110#define F_GETLK64 12
111#define F_SETLK64 13
112#define F_SETLKW64 14
113
114struct compat_flock64 {
115 short l_type;
116 short l_whence;
117 compat_loff_t l_start;
118 compat_loff_t l_len;
119 compat_pid_t l_pid;
120};
121
122struct compat_statfs {
123 s32 f_type;
124 s32 f_bsize;
125 s32 f_blocks;
126 s32 f_bfree;
127 s32 f_bavail;
128 s32 f_files;
129 s32 f_ffree;
130 compat_fsid_t f_fsid;
131 s32 f_namelen;
132 s32 f_frsize;
133 s32 f_flags;
134 s32 f_spare[5];
135};
136
137#define COMPAT_RLIM_OLD_INFINITY 0x7fffffff
138#define COMPAT_RLIM_INFINITY 0xffffffff
139
140typedef u32 compat_old_sigset_t; /* at least 32 bits */
141
142#define _COMPAT_NSIG 64
143#define _COMPAT_NSIG_BPW 32
144
145typedef u32 compat_sigset_word;
146
147#define COMPAT_OFF_T_MAX 0x7fffffff
148#define COMPAT_LOFF_T_MAX 0x7fffffffffffffffL
149
150/*
151 * A pointer passed in from user mode. This should not
152 * be used for syscall parameters, just declare them
153 * as pointers because the syscall entry code will have
154 * appropriately converted them already.
155 */
156typedef u32 compat_uptr_t;
157
158static inline void __user *compat_ptr(compat_uptr_t uptr)
159{
160 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
161}
162
163static inline compat_uptr_t ptr_to_compat(void __user *uptr)
164{
165 return (u32)(unsigned long)uptr;
166}
167
168#ifdef CONFIG_COMPAT
169
170static inline int is_compat_task(void)
171{
172 return is_32bit_task();
173}
174
175#endif
176
177static inline void __user *arch_compat_alloc_user_space(long len)
178{
179 unsigned long stack;
180
181 stack = KSTK_ESP(current);
182 if (is_compat_task())
183 stack &= 0x7fffffffUL;
184 return (void __user *) (stack - len);
185}
186
187struct compat_ipc64_perm {
188 compat_key_t key;
189 __compat_uid32_t uid;
190 __compat_gid32_t gid;
191 __compat_uid32_t cuid;
192 __compat_gid32_t cgid;
193 compat_mode_t mode;
194 unsigned short __pad1;
195 unsigned short seq;
196 unsigned short __pad2;
197 unsigned int __unused1;
198 unsigned int __unused2;
199};
200
201struct compat_semid64_ds {
202 struct compat_ipc64_perm sem_perm;
203 compat_time_t sem_otime;
204 compat_ulong_t __pad1;
205 compat_time_t sem_ctime;
206 compat_ulong_t __pad2;
207 compat_ulong_t sem_nsems;
208 compat_ulong_t __unused1;
209 compat_ulong_t __unused2;
210};
211
212struct compat_msqid64_ds {
213 struct compat_ipc64_perm msg_perm;
214 compat_time_t msg_stime;
215 compat_ulong_t __pad1;
216 compat_time_t msg_rtime;
217 compat_ulong_t __pad2;
218 compat_time_t msg_ctime;
219 compat_ulong_t __pad3;
220 compat_ulong_t msg_cbytes;
221 compat_ulong_t msg_qnum;
222 compat_ulong_t msg_qbytes;
223 compat_pid_t msg_lspid;
224 compat_pid_t msg_lrpid;
225 compat_ulong_t __unused1;
226 compat_ulong_t __unused2;
227};
228
229struct compat_shmid64_ds {
230 struct compat_ipc64_perm shm_perm;
231 compat_size_t shm_segsz;
232 compat_time_t shm_atime;
233 compat_ulong_t __pad1;
234 compat_time_t shm_dtime;
235 compat_ulong_t __pad2;
236 compat_time_t shm_ctime;
237 compat_ulong_t __pad3;
238 compat_pid_t shm_cpid;
239 compat_pid_t shm_lpid;
240 compat_ulong_t shm_nattch;
241 compat_ulong_t __unused1;
242 compat_ulong_t __unused2;
243};
244#endif /* _ASM_S390X_COMPAT_H */
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_S390X_COMPAT_H
3#define _ASM_S390X_COMPAT_H
4/*
5 * Architecture specific compatibility types
6 */
7#include <linux/types.h>
8#include <linux/sched.h>
9#include <linux/sched/task_stack.h>
10#include <linux/thread_info.h>
11
12#include <asm-generic/compat.h>
13
14#define __TYPE_IS_PTR(t) (!__builtin_types_compatible_p( \
15 typeof(0?(__force t)0:0ULL), u64))
16
17#define __SC_DELOUSE(t,v) ({ \
18 BUILD_BUG_ON(sizeof(t) > 4 && !__TYPE_IS_PTR(t)); \
19 (__force t)(__TYPE_IS_PTR(t) ? ((v) & 0x7fffffff) : (v)); \
20})
21
22#define PSW32_MASK_PER 0x40000000UL
23#define PSW32_MASK_DAT 0x04000000UL
24#define PSW32_MASK_IO 0x02000000UL
25#define PSW32_MASK_EXT 0x01000000UL
26#define PSW32_MASK_KEY 0x00F00000UL
27#define PSW32_MASK_BASE 0x00080000UL /* Always one */
28#define PSW32_MASK_MCHECK 0x00040000UL
29#define PSW32_MASK_WAIT 0x00020000UL
30#define PSW32_MASK_PSTATE 0x00010000UL
31#define PSW32_MASK_ASC 0x0000C000UL
32#define PSW32_MASK_CC 0x00003000UL
33#define PSW32_MASK_PM 0x00000f00UL
34#define PSW32_MASK_RI 0x00000080UL
35
36#define PSW32_MASK_USER 0x0000FF00UL
37
38#define PSW32_ADDR_AMODE 0x80000000UL
39#define PSW32_ADDR_INSN 0x7FFFFFFFUL
40
41#define PSW32_DEFAULT_KEY (((u32) PAGE_DEFAULT_ACC) << 20)
42
43#define PSW32_ASC_PRIMARY 0x00000000UL
44#define PSW32_ASC_ACCREG 0x00004000UL
45#define PSW32_ASC_SECONDARY 0x00008000UL
46#define PSW32_ASC_HOME 0x0000C000UL
47
48#define PSW32_USER_BITS (PSW32_MASK_DAT | PSW32_MASK_IO | PSW32_MASK_EXT | \
49 PSW32_DEFAULT_KEY | PSW32_MASK_BASE | \
50 PSW32_MASK_MCHECK | PSW32_MASK_PSTATE | \
51 PSW32_ASC_PRIMARY)
52
53#define COMPAT_USER_HZ 100
54#define COMPAT_UTS_MACHINE "s390\0\0\0\0"
55
56typedef u16 __compat_uid_t;
57typedef u16 __compat_gid_t;
58typedef u32 __compat_uid32_t;
59typedef u32 __compat_gid32_t;
60typedef u16 compat_mode_t;
61typedef u16 compat_dev_t;
62typedef u16 compat_nlink_t;
63typedef u16 compat_ipc_pid_t;
64typedef u32 compat_caddr_t;
65typedef __kernel_fsid_t compat_fsid_t;
66
67typedef struct {
68 u32 mask;
69 u32 addr;
70} __aligned(8) psw_compat_t;
71
72typedef struct {
73 psw_compat_t psw;
74 u32 gprs[NUM_GPRS];
75 u32 acrs[NUM_ACRS];
76 u32 orig_gpr2;
77} s390_compat_regs;
78
79typedef struct {
80 u32 gprs_high[NUM_GPRS];
81} s390_compat_regs_high;
82
83struct compat_stat {
84 compat_dev_t st_dev;
85 u16 __pad1;
86 compat_ino_t st_ino;
87 compat_mode_t st_mode;
88 compat_nlink_t st_nlink;
89 __compat_uid_t st_uid;
90 __compat_gid_t st_gid;
91 compat_dev_t st_rdev;
92 u16 __pad2;
93 u32 st_size;
94 u32 st_blksize;
95 u32 st_blocks;
96 u32 st_atime;
97 u32 st_atime_nsec;
98 u32 st_mtime;
99 u32 st_mtime_nsec;
100 u32 st_ctime;
101 u32 st_ctime_nsec;
102 u32 __unused4;
103 u32 __unused5;
104};
105
106struct compat_flock {
107 short l_type;
108 short l_whence;
109 compat_off_t l_start;
110 compat_off_t l_len;
111 compat_pid_t l_pid;
112};
113
114#define F_GETLK64 12
115#define F_SETLK64 13
116#define F_SETLKW64 14
117
118struct compat_flock64 {
119 short l_type;
120 short l_whence;
121 compat_loff_t l_start;
122 compat_loff_t l_len;
123 compat_pid_t l_pid;
124};
125
126struct compat_statfs {
127 u32 f_type;
128 u32 f_bsize;
129 u32 f_blocks;
130 u32 f_bfree;
131 u32 f_bavail;
132 u32 f_files;
133 u32 f_ffree;
134 compat_fsid_t f_fsid;
135 u32 f_namelen;
136 u32 f_frsize;
137 u32 f_flags;
138 u32 f_spare[4];
139};
140
141struct compat_statfs64 {
142 u32 f_type;
143 u32 f_bsize;
144 u64 f_blocks;
145 u64 f_bfree;
146 u64 f_bavail;
147 u64 f_files;
148 u64 f_ffree;
149 compat_fsid_t f_fsid;
150 u32 f_namelen;
151 u32 f_frsize;
152 u32 f_flags;
153 u32 f_spare[4];
154};
155
156#define COMPAT_RLIM_INFINITY 0xffffffff
157
158typedef u32 compat_old_sigset_t; /* at least 32 bits */
159
160#define _COMPAT_NSIG 64
161#define _COMPAT_NSIG_BPW 32
162
163typedef u32 compat_sigset_word;
164
165#define COMPAT_OFF_T_MAX 0x7fffffff
166
167/*
168 * A pointer passed in from user mode. This should not
169 * be used for syscall parameters, just declare them
170 * as pointers because the syscall entry code will have
171 * appropriately converted them already.
172 */
173
174static inline void __user *compat_ptr(compat_uptr_t uptr)
175{
176 return (void __user *)(unsigned long)(uptr & 0x7fffffffUL);
177}
178#define compat_ptr(uptr) compat_ptr(uptr)
179
180#ifdef CONFIG_COMPAT
181
182static inline int is_compat_task(void)
183{
184 return test_thread_flag(TIF_31BIT);
185}
186
187static inline void __user *arch_compat_alloc_user_space(long len)
188{
189 unsigned long stack;
190
191 stack = KSTK_ESP(current);
192 if (is_compat_task())
193 stack &= 0x7fffffffUL;
194 return (void __user *) (stack - len);
195}
196
197#endif
198
199struct compat_ipc64_perm {
200 compat_key_t key;
201 __compat_uid32_t uid;
202 __compat_gid32_t gid;
203 __compat_uid32_t cuid;
204 __compat_gid32_t cgid;
205 compat_mode_t mode;
206 unsigned short __pad1;
207 unsigned short seq;
208 unsigned short __pad2;
209 unsigned int __unused1;
210 unsigned int __unused2;
211};
212
213struct compat_semid64_ds {
214 struct compat_ipc64_perm sem_perm;
215 compat_ulong_t sem_otime;
216 compat_ulong_t sem_otime_high;
217 compat_ulong_t sem_ctime;
218 compat_ulong_t sem_ctime_high;
219 compat_ulong_t sem_nsems;
220 compat_ulong_t __unused1;
221 compat_ulong_t __unused2;
222};
223
224struct compat_msqid64_ds {
225 struct compat_ipc64_perm msg_perm;
226 compat_ulong_t msg_stime;
227 compat_ulong_t msg_stime_high;
228 compat_ulong_t msg_rtime;
229 compat_ulong_t msg_rtime_high;
230 compat_ulong_t msg_ctime;
231 compat_ulong_t msg_ctime_high;
232 compat_ulong_t msg_cbytes;
233 compat_ulong_t msg_qnum;
234 compat_ulong_t msg_qbytes;
235 compat_pid_t msg_lspid;
236 compat_pid_t msg_lrpid;
237 compat_ulong_t __unused1;
238 compat_ulong_t __unused2;
239};
240
241struct compat_shmid64_ds {
242 struct compat_ipc64_perm shm_perm;
243 compat_size_t shm_segsz;
244 compat_ulong_t shm_atime;
245 compat_ulong_t shm_atime_high;
246 compat_ulong_t shm_dtime;
247 compat_ulong_t shm_dtime_high;
248 compat_ulong_t shm_ctime;
249 compat_ulong_t shm_ctime_high;
250 compat_pid_t shm_cpid;
251 compat_pid_t shm_lpid;
252 compat_ulong_t shm_nattch;
253 compat_ulong_t __unused1;
254 compat_ulong_t __unused2;
255};
256#endif /* _ASM_S390X_COMPAT_H */